Quote Originally Posted by buddrow View Post
Hope it helps. gimme a few and I'll see about posting the actual circuit requirements. This is transplanting into the 95ish 1500 correct?
Thank you for the added info.
It's a 93 K1500 and yes it's an LT1 transplant. 16168625 is the old PCM, and 16188051 is the LT1 PCM, using 1994 LT1 bins because my 1993 4L60E is NOT a pulse width modulated TCC lock up, it's either on or off...And right now mine is always off....

I do see a possibility for me to try. Thanks to the schematics you provided and the info from Fast355. Looks like the 16168625 PCM uses a boo ( brake on/off ) signal to disengage the TCC, and the 16188051 looks FOR a Key + signal on the TCC pin to signal the PCM for lock up...unless I looked at it wrong...having winows 10 issues today and am cross eyed from tech their support...

I really appreciate all the input guys.. next round of carbonated beverages are on me !!